Giannis Antetokounmpo sat out the Milwaukee Bucks' NBA clash with the Miami Heat due to right calf soreness on Saturday.
Antetokounmpo was absent for the second consecutive game after missing Thursday's loss to the Toronto Raptors because of the same problem.
The Finals MVP was a late withdrawal for the defending champions' 97-83 defeat against the Raptors, with Bucks head coach Mike Budenholzer initially hopeful it was only a "short-term" issue.
On Saturday, Budenholzer said: "We'll just take it day by day. See how it goes."
Antetokounmpo is averaging 27.6 points – only behind Brooklyn Nets superstar Kevin Durant entering Saturday's play, 11.8 rebounds and a career-high 6.0 assists per game this season.
Before facing Eastern Conference rivals the Heat, the Bucks boasted a 14-9 record to be fifth – three and a half games behind the Nets.